Nut-lock.



PATBNTBD JUNE 30, 1903.

L. ESSER.

NUT LOOK.

APPLICATION FILED NOV. 21, 1902.

N0 IODEL.

Hill] Ill UYHQ. WASKINGY n UNITED STATES Patented June 30, 1903.

PATENT OFFICE.

LAWRENCE ESSER, OF PILOTGROVE, MISSOURI.

NUT-LOCK.

SPECIFICATION formingpart of Letters Patent No. 732,178, dated June 30,1903.

Application filed November 21, 1902. Serial No. 132,232. (No model.)

To aZZ whom it may concern.-

Be it known that I, LAWRENCE ESSER, a citizen of the United States,residing at Pilotgrove, in the county of Cooper and State of Missouri,have invented certain new and useful Improvements in Nut-Locks; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

My invention relates to improvements in nut-locks, and has for itsobject a simple and efficient device for securely looking a nut againstdisplacement.

A further object is to provide a nut-lock which maybe used withoutaltering or changing in any manner the construction of the nut or bolt.

My invention is to be used in connection with a structure having morethan one nut in close proximity to each other and is especially adaptedfor the fish-plates of railjoints.

In the accompanying drawings, Figure 1 is a top plan view of myinvention. Fig. 2 is a side elevation showing its application inconnection with a rail-joint.

Referring specifically to the drawings, 5 indicates a flat strip ofmetal, preferably spring-steel, which is bent or bowed so as to lie overthe upper and lower sides, respectively, of two adjoining nuts. Bylengthening the strip it may be used to hold three or more nuts. In Fig.2 Ihave shown it applied to four nuts. The strip 5 isprovided with aprojecting washer-plate 6 at the inner edge thereof, which has a hole 7.The plate 6 is placed under one of the nuts, the bolt pass in g throughthe hole 7. This prevents lateral displacement of the strip, rotation ofthe nut being prevented by the engagement of the 5 by Letters Patent,is-

A nut-lock comprising a flexible strip adapted to lie over the upper andlower sides respectively, of adjoining nuts, and a perforatedwasher-plate integral therewith extending from the inner edgethereof,said strip lying on each side of said washer substantially asdescribed.

In testimony whereof I aifix my signature in presence of two witnesses.

LAWRENCE ESSER. Witnesses 1 STEVE L. STITES, F. K. HARRIS.

